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Light waves, visible and invisible
Each kind of light has a unique wavelength, but human eyes can only perceive a tiny slice of the full spectrum -- the very narrow range from red to v…
1 week, 5 days ago
Human sperm vs. the sperm whale - Aatish Bhatia
View full lesson: http://ed.ted.com/lessons/human-sperm-vs-the-sperm-whale-aatish-bhatia
Traveling is extremely arduous for microscopic sperm -- think…
1 week, 5 days ago
The man who lost his tactile sensation - Antonio Cataldo
Explore the science behind how your body and brain process different sensations like touch, pain, temperature, and spatial awareness.
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We don’t often…
1 week, 5 days ago
Life's third act - Jane Fonda
Within this generation, an extra 30 years have been added to our life expectancy -- and these years aren't just a footnote or a pathology. In this ta…
1 week, 5 days ago
Sometimes it's valuable to release the driver's seat - Baba Shiv
Over the years, research has shown a counterintuitive fact about human nature: That sometimes, having too much choice makes us less happy. This may e…
1 week, 5 days ago
Curious answers to the psychopath test - Jon Ronson
Is there a definitive line that divides crazy from sane? With a hair-raising delivery, Jon Ronson, author of The Psychopath Test, illuminates the gra…
1 week, 5 days ago
How whales breathe, communicate ... and fart with their faces - Joy Reidenberg
View full lesson: http://ed.ted.com/lessons/how-whales-breathe-communicate-and-fart-with-their-faces-joy-reidenberg
Comparative anatomist Joy Reidenbe…
1 week, 5 days ago
Can you freeze your body and be revived? - Shannon N. Tessier
Dig into the field of cryobiology and explore the possibility of humans being frozen and preserved for future resurrection.
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In 1967, James Bedford h…
1 week, 5 days ago
What occurred to antimatter? - Rolf Landua
View full lesson: http://ed.ted.com/lessons/what-happened-to-antimatter-rolf-landua
Particles come in pairs, which is why there should be an equal amo…
1 week, 5 days ago
What's yet to explore? - Nathan Wolfe
We've been to the moon, we've mapped the continents, we've even been to the deepest point in the ocean -- twice. What's left for the next generation …
1 week, 5 days ago